Watch out world: D'Angelo Ortiz, David's 15-year-old son, is coming. Good luck to the pitchers who will have to face him -- especially with dear old dad giving him pointers at the plate.

David recently turned on the camera to show off one of their hitting sessions together, and the tips Big Papi gave could come from no one but the big man himself.

"You ready, you ready, here comes the baseball and ... POW!" Ortiz instructed his son. Sure, maybe there's not a lot of Driveline-style mechanics in the tip, but they seemed to do the trick.